diff --git a/Gemfile b/Gemfile
index 56c23f5..039ba60 100644
--- a/Gemfile
+++ b/Gemfile
@@ -28,3 +28,5 @@ group :test do
 end
 
 gem "puma", "~> 6.4"
+
+gem "rackup", "~> 2.1"
diff --git a/Gemfile.lock b/Gemfile.lock
index 2c228f4..5caf8ec 100644
--- a/Gemfile.lock
+++ b/Gemfile.lock
@@ -57,6 +57,9 @@ GEM
     rack (3.0.8)
     rack-test (2.1.0)
       rack (>= 1.3)
+    rackup (2.1.0)
+      rack (>= 3)
+      webrick (~> 1.8)
     regexp_parser (2.8.1)
     rexml (3.2.6)
     roda (3.72.0)
@@ -92,6 +95,7 @@ GEM
     sys-uname (1.2.3)
       ffi (~> 1.1)
     tilt (2.3.0)
+    webrick (1.8.1)
     websocket (1.2.10)
     xpath (3.2.0)
       nokogiri (~> 1.8)
@@ -104,6 +108,7 @@ DEPENDENCIES
   cucumber (~> 9.0)
   erubi (~> 1.12)
   puma (~> 6.4)
+  rackup (~> 2.1)
   roda (~> 3.72)
   rspec (~> 3.12)
   selenium-webdriver (~> 4.13)